p-Dichlorobenzene
Prague
p-Dichlorobenzene is a carcinogenic insecticide used in mothballs, and added to deodorant blocks made for trash cans and toilets. Long-term exposure can cause liver damage and kidney problems.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 12 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 6 ppb
The EWG Health Guideline of 6 ppb for p-dichlorobenzene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
EPA Maximum Contaminant
Level (MCL) 75 ppb
The legal limit for p-dichlorobenzene, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1980s. This limit may not fully protect against the risk of cancer due to p-dichlorobenzene exposure.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-27 | 039964.002 | ND |
| 2014-02-27 | 039964.001 | ND |
| 2015-02-19 | 053716.002 | ND |
| 2015-02-19 | 053716.001 | ND |
| 2016-03-14 | SDWA-1013351-00 | ND |
| 2016-03-14 | SDWA-1013350-00 | ND |
| 2016-08-24 | SDWA-1059445-00 | ND |
| 2017-06-20 | SDWA-1165629-00 | ND |
| 2017-06-20 | SDWA-1165655-00 | ND |
| 2017-06-20 | SDWA-1165651-00 | ND |
| 2017-06-20 | SDWA-1165645-00 | ND |
| 2017-06-20 | SDWA-1165641-00 | ND |
| 2017-06-20 | SDWA-1165635-00 | ND |
| 2017-06-20 | SDWA-1165623-00 | ND |
| 2017-06-20 | SDWA-1165617-00 | ND |
| 2017-06-20 | SDWA-1165611-00 | ND |
| 2017-06-20 | SDWA-1165605-00 | ND |
| 2017-06-20 | SDWA-1165598-00 | ND |
| 2017-12-14 | SDWA-1214357-00 | ND |
| 2018-02-20 | SDWA-1237722-00 | ND |
| 2018-04-27 | SDWA-1251917-00 | ND |
| 2018-09-05 | SDWA-1280265-00 | ND |
| 2018-12-12 | SDWA-1313682-00 | ND |
| 2019-02-20 | SDWA-1338996-00 | ND |
| 2019-05-08 | SDWA-1361109-00 | ND |
| 2019-07-18 | SDWA-1380049-00 | ND |